Overview of discrete event systems opacity: Models, validation, and quantification

R Jacob, JJ Lesage, JM Faure - Annual reviews in control, 2016 - Elsevier
Over the last decade, opacity of discrete event systems (DES) has become a very fertile field
of research. Driven by safety and privacy concerns in network communications and online …

Analysis and control for resilience of discrete event systems: Fault diagnosis, opacity and cyber security

JC Basilio, CN Hadjicostis, R Su - Foundations and Trends® …, 2021 - nowpublishers.com
Abstract System resilience captures the ability of the system to withstand a major disruption
within acceptable performance degradation and to recover within an acceptable time frame …

A new approach for the verification of infinite-step and K-step opacity using two-way observers

X Yin, S Lafortune - Automatica, 2017 - Elsevier
In the context of security analysis for information flow properties, where a potentially
malicious observer (intruder) tracks the observed behavior of a given system, infinite-step …

Security-preserving multi-agent coordination for complex temporal logic tasks

X Yu, X Yin, S Li, Z Li - Control Engineering Practice, 2022 - Elsevier
This paper investigates the coordination of multiple agents for high-level tasks described by
linear temporal logics (LTL). The general purpose for multi-agent coordination is to …

Strong current-state and initial-state opacity of discrete-event systems

X Han, K Zhang, J Zhang, Z Li, Z Chen - Automatica, 2023 - Elsevier
Opacity, as an important property in information-flow security, characterizes the ability of a
system to keep some secret information from an intruder. In discrete-event systems, based …

Assessment of initial-state-opacity in live and bounded labeled Petri net systems via optimization techniques

F Basile, G De Tommasi, C Motta - Automatica, 2023 - Elsevier
Opacity is a property of discrete event systems (DES) that is related to the possibility of
hiding a secret to external observers, the so called intruders. If the secret is the system initial …

Synthesis of dynamic masks for infinite-step opacity

X Yin, S Li - IEEE Transactions on Automatic Control, 2019 - ieeexplore.ieee.org
We investigate the problem of synthesizing dynamic masks that preserve the infinite-step
opacity in the context of discrete-event systems. Dynamic mask is an information acquisition …

A general language-based framework for specifying and verifying notions of opacity

A Wintenberg, M Blischke, S Lafortune… - Discrete Event Dynamic …, 2022 - Springer
Opacity is an information flow property that captures the notion of plausible deniability in
dynamic systems, that is whether an intruder can deduce that “secret” behavior has …

Enforcement for infinite-step opacity and K-step opacity via insertion mechanism

R Liu, J Lu - Automatica, 2022 - Elsevier
Opacity is an important information-flow property concerning the security and privacy of
cyber–physical systems. We investigate the synthesis problem of infinite-step opacity and K …

Path detectability verification for time-dependent systems with application to flexible manufacturing systems

T Qin, J Zhu, Z Li, X Hu, AMM Mostafa - Information Sciences, 2025 - Elsevier
This paper addresses the path detectability verification problem for time-dependent systems
modeled by time labeled Petri nets (TLPNs). To capture the information precisely, it may not …